Reel



H. HOFMANN Feb. 26, 1935.

REEL

Filed July 20. 1935 Patented Feb. 26, 1935 UNITED STATES REEL Hugo Hofmann, Elizabethton, Tenn .assignorto American Bemberg Corporation, New York, N. Y., a. corporation of Delaware Application July 20, 1933, Serial No. 681,240

11 Claims.

In the manufacture of artificial filaments, yarns, threads, etc., cellulosic solutions are prepared, and spun or extruded through minute orifices into some coagulating, precipitating or hardening medium. The product thus formed may be suitably guided to and collected upon a reel. The present invention concerns such a reel.

In the reels hitherto employed, the winding surfaces have been so constructed that narrow or broad bars have been used. This has resulted in the application of an extra strain or pressure at certain portions of the skein produced by winding the yarn upon the reel. The present invention concerns an improved construction of the reel surface which does away entirely with this objectionablestressing of the skein, and thus aids in eliminating unevenness of dyeing of the resultant filaments, etc.

Another objectof the present invention is to devise a reel so constructed that the filaments collected thereon will be under a more uniform pressure throughout their length, due to the rounded winding surface of the said reel.

Still another object of the present invention is to provide a novel collecting means whereby the filaments are not subjected to sharp turns or stresses, in the wind.

These and other objects of the present invention will in part become obvious and in part 1 be pointed out from a study of the following specification and claims taken in conjunction with the attached drawing, in which:

Figure 1 is a longitudinal central section of a preferred form of the invention;

Figure 2 is a cross section taken on the line 2--2 of Figure 1; and

Figure 3 is a view similar to Figure 2 of a modified form of the invention.

Heretofore, in the winding of artificial filaments on reels, it has been the practice to use the usual slat-like reels comprised usually of six longitudinal bars of narrow construction forming the points of a hexagon, upon which the filaments rested when wound. With the use of this type of reel, however, it has been found that quite an unevenly distributed pressure resulted. At these points, the innermost layers of the wind were pressed and deformed to such an extent that when goods were made up from the filaments, shiners or unevenly dyed portions resulted in the finished fabric. It is the main purpose of applicants device to overcome these disadvantages of the reels usually used in the art.

In the preferred form of the invention, as illustrated in Figures 1 and 2'of the drawing, 1 indicates the shaft of the reel which has bearing shaft extensions 2 at either end. A gear 3 is shown mounted at one endof'the shaft 1 whereby when the reel is placed in position for the winding of filaments, the gear 3 may mesh with a gear on a power driven shaft (not shown) and be driven thereby.

The shaft 1 is squared and slidably mounted in the reel heads 4-4 as shown at 5-5. The squared openings 5-5 in the reel heads H have metal bushings 6-6 which have ears 7 integral therewith for securing the said bushings 6-6 to reel heads 4-4. I

The reel heads 4-4 are illustrated in the preferred form of the invention as composed of three segments. Two of these segments 88 are integral with each other, but the third segment 9 has a slidable connectionwith the segments 88 for the purpose of collapsing the reel to remove the yarn bodies.

Pins 1010 are integrally attached to the segment 9 of the reel head 4 and have a sliding fit in apertures 11-11 in the hub portion 12 of the segments 88. 1

A longitudinal bar 13' connects the sliding segments 9-9 in spaced relation and is secured to the segments 99 by bolts 14.

The bar 13 has a pivotal lever connecting 15-15 with the shaft 1 so that it is readily perceived that by knocking or pushing the shaft 1 in the direction of the arrow, the segments 9-9 will be forced to slide inwardly toward the center of the reel thereby reducing the diameter of the said reel andallowing the yarn bodies to be easily removed.

Longitudinal bars 1616 hold the segments 8-8 of each reel head 4-4 in spaced relation and are attached thereto through the medium of bolts 1'7.

The curved winding surfaces 18 of the reel may be of acid resistant material and are shaped so that each is an arc of such a curvature that the sloping ends of the windingsurfaces 18 lie tangential to the end portions of each curve, thereby eliminating any possibility of concentrated pressure being brought to bear upon the threads or filaments at the end portions of each section of the winding surfaces 18.

The curved winding surfaces 18 of the reel are further distinguished by the fact that they are shaped to correspond to the arc of a circle whose circumference is less than the circumference of the said reel. This feature is clearly illustrated in the drawing as shown in Figures 2 and 3.

The winding surfaces 18 are attached to the head segments 88 and 9 by bolts 19 as well as the bolts 14.

Brace members 20 conforming to the shape of the winding surfaces 18 are attached to the said winding surfaces and in turn are attached at 21 to the longitudinal bars 13 and 1616.

In the modified form of the invention shown in Figure 3 the winding reel has four segmented winding surfaces 18a instead of the three shown in the preferred form. The reference numerals for this form will be the same for like or equivalent parts with the exception of having the letter a added thereto. In this form of the invention there are two movable segments 2222 to the reel head 4a which collapse inwardly when the shaft 1a is knocked as described and illustrated in the preferred form.

The movable segments 22 have pivotal lever connections 15a-15a with the shaft 1a through the medium of the longitudinal spacer bars 13a13a and are operated as described in the discussion of the preferred form.

Having thus described the invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, other than as set forth in the claims.

What I claim is:

1. In a reel, a shaft, reel heads mounted on said shaft, said shaft being slidable with relation to said reel heads, said reel heads formed of I a plurality of spoke members, means operated by said shaft for collapsing one or more of said spokes, said spokes having secured thereto arcuate wind: ing surfaces, each of said surfaces having a constant radius of curvature slightly less than the radius of the reel, adjacent end portions of said surfaces lying tangential to a common plane.

.2. In a reel, a squared shaft, reel heads mounted in said shaft, said shaft being slidable with relation to said reel heads, said reel heads having arcuate spoke extensions, means operated by said shaft for collapsing one or more of said arcuate spokes, said spokes having secured thereto winding surfaces, each of said surfaces having a constant radius of curvature slightly less than the radius of the reel, adjacent end portions of said surfaces lying tangential to a common plane.

3. In a reel, a squared shaft, reel heads mounted on said shaft, said shaft being slidable with relation to said reel heads, said reel heads having arcuate spoke members, means operated by said shaft for collapsing one or more of said arcuate spokes, said means including pivotal levers attached to said shaft and said collapsible spoke members, said spokes having secured thereto arcuate winding surfaces, each of said surfaces having a constant radius of curvature slightly less than the radius of the reel, adjacent end portions of said surfaces lying tangential to a common plane. a

- 4. In a reel, a plurality of arcuate winding surfaces, each of'said surfaces having a constant radius of curvature slightly less than the radius of the reel, adjacent end portions of said surfaces lying tangential to a common plane, said winding surfaces being mounted on reel heads having arcuate spoke extensions, said reel heads being mounted on a shaft, said shaft being slidable with relation thereto, and means operated by said shaft for collapsing one or more of said winding surfaces. a

5. In a reel, a plurality of arcuate winding surfaces, each of said surfaces having a constant radius of curvature slightly less than the radius of the reel, adjacent end portions of said surfaces lying tangential to a common plane, one or more of said winding surfaces being collapsible, a shaft upon which said winding surfaces are mounted, and means operated by said shaft for collapsing the said collapsible winding surfaces.

6. A reel for use in the manufacture of filaments of artificial origin comprising a plurality of arcuate winding surfaces, each of said surfaces having a constant radius of curvature slightly less than the radius of the reel, adjacent end portions of said surfaces lying tangential to a common plane, and means for collapsing one or more of said winding surfaces.

'7. In a reel, a shaft, reel heads mounted on said shaft, said shaft being slidable with relation to said reel heads, said reel heads formed of a plurality of arcuate spokes, the arcs of said spokes having a constant radius of curvature slightly less than the radius of the reel, adjacent end portions of said arcs lying tangential to a common plane, and means for collapsing one or more of said areuate spokes.

8. In a reel, a shaft, reel heads mounted on said shaft, said shaft being slidable with relation to said reel heads, said reel heads formed of a plurality of arcuate spokes, the arcs of said spokes having a constant radius of curvature slightly less than the radius of, the reel, adjacent end portions of said arcs lying tangential to a common plane, and means for collapsing one or more of said arcuate spokes, said means operated by said shaft.

9. In a reel, a plurality of arcuate winding surfaces, each of said surfaces having a constant radius of curvature slightly less than the radius of the reel, adjacent end portions of said surfaces lying tangential to a common plane, one ,or more of said winding surfaces being. collapsible.

10. In a reel, a plurality of arcuate winding surfaces, veach of said surfaces having a constant radius of curvature slightly less than the radius of the reel, adjacent end portions of said surfaces lying tangential to a common plane, one or more of said winding surfaces being collapsible, said winding surfaces being mounted on reel heads, said reel heads being mounted on a central shaft.

11. A reel for use in the manufacture of filaments of artificial origin comprising winding surfaces, each of said surfaces having a constant radius of curvature slightly less than the radius of the reel, adjacent end portions of said surfaces lying tangential to a common plane.

HUGO HOFMANN. 

